Finding the Fourth Proportional to 826,505.20, 1,239,276.06 and 320,474.98
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Solution
The fourth proportional to 826,505.20, 1,239,276.06 and 320,474.98 is: 480,525.68
Step by Step Solution
- Step 1: Write the proportion equation
826,505.20 : 1,239,276.06 = 320,474.98 : x - Step 2: Convert to fraction form
826,505.20/1,239,276.06 = 320,474.98/x - Step 3: Cross multiply
826,505.20x = 1,239,276.06 × 320,474.98 - Step 4: Simplify right side
826,505.20x = 397,156,970,542.98 - Step 5: Solve for x
x = 397,156,970,542.98/826,505.20 - Step 6: Final answer
x = 480,525.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.